» View Question

lraddi ... 11/9/2012

2001 Chrysler 300M Base 6 Cyl 3.5L

Preventive Maintenance

why does my car have a slow startup in the morning after a cold night

1 Answer


CVO 11/10/2012

Prime a starting fluid through the throttle body, if the engine starts, check the fuel system pressure.

The Fuel System Pressure

50-60 PSI (Pounds per Square Inch)Vent the fuel tank vapors by loosening the fuel cap then disconnect the electric fuel pump relay plug, and start the engine . Allow the engine to run until it runs out of fuel and stalls.After spinning the engine over for a period of (3) to(5) seconds, turn off the ignition switch and reconnect the electric fuel pump relay . Install a fuel pressure gauge in the fuel rail test port, and secure the fuel tank cap.With the ignition key in the on position, verify that no leaks are present and utilize the scan tool to energize the fuel pump. This will bring the system to a stabilized fuel pressure that can be visually verified on the gauge.

If the fuel system pressure isn't in the specifications, replace the fuel pump.


Answer this question

( characters left)

Follow Question

what's this?